我正在尝试更新显示页面上的属性，将其保留在显示页面中，该属性通过不同的表连接。例如：经理登录到管理站点并看到多个资源，单击一个资源，并可以看到有权访问该资源的所有用户(已批准或待处理(。他们目前可以删除用户的访问权限。我正在尝试做的是允许经理将请求的状态从待处理更改为已批准。
因此，对于我的模型，我有以下内容：
class TrainingResource
has_many :user_training_resources, dependent: :destroy
end
class UserTrainingResource
belongs_to :user
belongs_to :training_resource
enum status: [:pending, :confirmed, :rejected]
end
class Users
has_many :user_training_resources, dependent: :destroy
has_many :training_resources, through: :user_training_resources
end
培训资源控制器
class Admin::TrainingResourcesController < Admin::ApplicationController
belongs_to_app :training_resources
add_breadcrumb 'Training Resources', :admin_training_resources_path
before_action :load_training_resource, only: [:show, :edit, :update, :destroy]
respond_to :html, :json
def index
@training_resources = TrainingResource.paginate(page: params[:page])
@training_resources = @training_resources.search(params[:search]) if params[:search]
respond_with(@training_resources)
end
def show
respond_with @training_resource
end
def new
@training_resource = TrainingResource.new
respond_with(@training_resource)
end
def create
@training_resource = TrainingResource.new(training_resource_params)
flash[:notice] = 'TrainingResource created successfully' if @training_resource.save
respond_with @training_resource, location: admin_training_resources_path
end
def edit
respond_with(@training_resource)
end
def update
flash[:notice] = 'TrainingResource updated successfully' if @training_resource.update(training_resource_params)
respond_with @training_resource, location: admin_training_resources_path
end
def destroy
flash[:notice] = 'TrainingResource deleted successfully' if @training_resource.destroy
respond_with @training_resource, location: admin_training_resources_path
end
private
def load_training_resource
@training_resource = TrainingResource.find_by!(id: params[:id])
end
def training_resource_params
params.require(:training_resource).permit(:name, :description, :total_subscriptions, :url)
end
end
UserTrainingResourcesController，指向 TrainingResourcesController
class Admin::UserTrainingResourcesController < Admin::ApplicationController
belongs_to_app :training_resources
add_breadcrumb 'Training Resources', :admin_training_resources_path
before_action :load_training_resource
respond_to :html, :json
def edit
respond_with @user_training_resource
end
def update
flash[:notice] = 'UserTrainingResource updated successfully' if @user_training_resource.update(user_training_resource_params)
respond_with @user_training_resource, location: admin_training_resources_path
end
def destroy
flash[:notice] = 'UserTrainingResource deleted successfully' if @user_training_resource.destroy
respond_with @user_training_resource, location: admin_training_resources_path
end
private
def load_training_resource
@user_training_resource = UserTrainingResource.find_by!(id: params[:id])
end
def user_training_resource_params
params.require(:user_training_resources).permit(
:training_resources_id, :status).merge(user_id: current_user_id)
end
end
培训资源展示
<tbody>
<% @training_resource.users.each do |training| %>
<tr>
<td><%= training.full_name %></td>
<% utr = training.user_training_resources.where(training_resource: @training_resource).first %>
<td><%= utr.status.capitalize %>
<%= form_tag '/user_training_resource/edit', :method => :get do %>
<%= select_tag( :user_training_resources_id, options_for_select(['pending', 'confirmed', 'rejected']))%>
<%= submit_tag 'Edit Status', class: 'btn btn-default btn-sm' %>
<% end %>
<%= tb_form_for [:admin, @training_resource], :remote => true, :data => {:errors => :inline, :success => admin_user_training_resources_path} do |f| %>
<%= tb_form_errors(f.object, :base) %>
<%= f.tb_select :name, options_for_select(holder, :status) %>
<%= f.tb_save_buttons('User Training Resource', admin_user_training_resources_path) %>
<% end %>
</td>
<td class="table-actions">
<%= link_to 'Edit', edit_admin_user_training_resource_path(training), :class => 'btn btn-default btn-sm' %>
<%= link_to 'Delete', admin_user_training_resource_path(training), :method => :delete, :data => {:confirm => 'Are you sure you want to delete this?'}, :class => 'btn btn-danger btn-sm' %>
</td>
</tr>
<% end %>
</tbody>
用户培训资源助手，持有人方法
def holder
TrainingResource.all.each(&:id)
end
我最终会删除指向编辑的链接，因为它将用户推送到 UserTrainingResource 编辑页面，我想将其保留在当前页面上。带有select_tag的顶部窗体实际上并没有在当前状态下读取，然后submit_tag正在重定向页面。
我最近的尝试是底部form_for。这是拉入 TrainingResource 而不是 UserTrainingResource 数据。当我将tb_select更改为：status，options_for_select(holder，：status(时，我最终会得到未定义的方法"status"。看起来它只针对TrainingResource。我也试过：
在这里认为它会拉入默认状态，然后允许选项更改。仍然存在未定义的"状态"方法的问题，即使如此，保存也存在问题。
我也试过：
在这种情况下，我最终得到了未定义的方法"map"。我试图通过尝试在@training_resource和@user_training_resource上进行复数来确定这一点，但结果是形式上的第一个参数不能包含 nil 或为空。
编辑：
在 UserTrainingResourcesController(用户训练资源控制器(中尝试：
def set_to_confirmed
@user_training_resource = UserTrainingResource.find(params[:user_training_resource])
end
然后在节目中
<%= link_to 'Confirmed', {:controller => 'user_training_resources', :action => 'set_to_confirmed', :status => @training_resource.user_training_resource }, :class => 'btn btn-default btn-sm'%>
尽管单击链接时页面加载没有错误，但我得到：
Requested URL: https://localhost:3000/admin/set_to_confirmed?status=%23%3CUserTrainingResource%3A%3AActiveRecord_Associations_CollectionProxy%3A0x00007f93ee8b0f90%3E
使用以下方法的最新尝试：
<% @training_resource.spud_users.each do |training| %>
<tr>
<td><%= training.full_name %></td>
<% utr = training.user_training_resources.where(training_resource: @training_resource).first %>
<td>
<%= tb_form_for [:admin, @training_resource], :remote => true, :data => {:errors => :inline, :success => admin_training_resources_path} do |f| %>
<%= f.select(:user_training_resource_id, options_for_select(['pending', 'confirmed', 'rejected']), :selected => utr.status)%>
<%= f.tb_save_buttons('', admin_training_resources_path) %>
<% end %>
</td>
这将仅显示选项，这很好，但我需要它默认为数据库中的当前内容并且保存不会粘住。
如果我明白这一点，您需要UserTrainingResource更改状态列来更新连接表。
我可能会在Admin::UserTrainingResourcesController中创建三个操作：
def set_to_pending
end
def set_to_confirmed
end
def set_to_rejected
end
然后我会在传递必要的参数来完成操作TrainingResource#Show为表中的每一行添加三个链接，如这篇文章中所述：通过轨道上的link_to ruby 传递参数